I have to agree with lubedude on this. Use what the Manufactuer suggests. They allow for that extra bit of oiling, anyway. They can run on 100:1 if nessesary, but I would'nt unless I had too... No offence intended..
That happened years ago.Originally posted by LubeDude:<br /> Hey OZ, You have finally gone off the Deep End.
<br /><br />Am I wrong about manufacturers not wanting what's best for your engine? Take newer transmissions for an example. Many new automatic transmissions don't come with a dipstick, and the manufacturer says the fluid never needs to be changed. Anybody that knows anything about oil knows that's BS, but the manufacturer doesn't care. It looks good to new buyers that think "great, I don't have to pay for transmission service!" and then the transmission goes just after the warranty runs out. It's a win win for the manufacturer. Same goes for Mercury outboards. They don't want what's best for YOU, they want what's best for THEM! That's the way any company works.<br /><br />Again, we're only talking about 40:1 here, not 25:1. If you want to use 50:1 that's fine, it's your motor. But don't do it simply because the manufacturer says so.
And guess what? Your trans SHOULD be changed before then, it will last longer, I guarantee it. Mercedes knows that, but they don't care. 100k changes make you happpy to throw money at them, and it will out last the warranty. Ask anybody that knows anything about oil, they'll tell you the same thing. Do you think Mercededs invented some magical trans fluid that lasts 3 times longer than any other? My Jeep's manul recommends I change the oil every 7500 miles. That's ridiculous. If I did that I'd be luck to get 150k out of it. Anybody that thinks the manufacturer wants what is best is severely mis informed. I wish I could live in a bubble like that.<br /><br />BTW - nobody has given a good arguement why 40:1 would be a bad thing...
How do you check the level without a dipstick? It has a low fluid sensor? The 100k change frequency may be from the tranny holding a large volume of fluid. I have a 3126 CAT (250hp)and ordered it with the oversize crankcase pan. CAT specs oil changes at 250 hrs on the standard pan and 400 hrs on the big pan. The larger pan hold 27 qts...about 10 more than the stock pan. It also has super large cooling fins vs no fins on the stock pan.Originally posted by ZmOz:<br />And guess what? Your trans SHOULD be changed before then, it will last longer, I guarantee it. Mercedes knows that, but they don't care. 100k changes make you happpy to throw money at them, and it will out last the warranty. Ask anybody that knows anything about oil, they'll tell you the same thing. Do you think Mercededs invented some magical trans fluid that lasts 3 times longer than any other? My Jeep's manul recommends I change the oil every 7500 miles. That's ridiculous. If I did that I'd be luck to get 150k out of it. Anybody that thinks the manufacturer wants what is best is severely mis informed. I wish I could live in a bubble like that.<br /><br />BTW - nobody has given a good arguement why 40:1 would be a bad thing...
Did I ever say it was mandatory?? The ONLY thing I'm trying to say here is 40:1 is a REALLY good idea and there are almost no side effects to it. That's it! <br /><br />You guys really need to start thinking for yourself rather than doing everything by the book...it's really quite pathetic. This is the ONLY forum out of 15+ mechanical forums I visit where everybody is afraid to do anything different. If everybody did everything by the book we wouldn't have outboard motors to begin with...
